But when does Spring officially start in the UK?
The start of the new season is marked by the Spring Equinox, which is happening tomorrow, March 20.
Here is all you need to know as the new season begins.
When does Spring start in the UK? Learn about Spring Equinox
While it is common to believe the first day of Spring is welcomed in as March begins, this is just meteorological Spring, with many weather forecasters often seeing a change in weather.
The first day of Spring 2025 according to astrologists is marked by the Spring Equinox on the celestial calendar.
This year, the 2025 Spring Equinox is on Thursday, March 20, at 9.01am.
Must-See Sky Events in 2025
Spring will then last until June 21 with the summer solstice, or midsummer, marking the longest day and shortest night of the year.
Throughout Spring, the days are longer than the nights.
What is the Spring Equinox?
Astrologically speaking, the Spring Equinox, or the vernal equinox, is one of just two times each year when the sun and the Earth’s equator align.
The word “equinox” comes from the Latin for “equal night” (aequus + nox).
@softgirlswhohike SPRING EQUINOX 20th March 2025 09.01 GMT #springequinox #springtime #softhiking #naturelover ♬ I’m Not Them – Them & I
On this day, most places on Earth will experience nearly equal amounts of daylight and darkness.
Due to the Earth’s axis being tilted, during the equinox, this tilt is neither inclined toward nor away from the Sun meaning both the Northern and Southern Hemispheres receive a similar amount of sunlight.
When do the clocks go forward in the UK?
The clocks do not change in line with the Spring Equinox but shortly after.
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This year in the UK the clocks will go forward by an hour at 1am on the last Sunday in March
The period when the clocks are one hour ahead is referred to as British Summer Time (BST).
In 2025, the clocks will go forward on Sunday, March 30.
